ColdFusion can't find ApplicationProxy.cfc in site root.

Question

I am running CF9 Standard on a Windows 2008 R2 server. I have an Application.cfc and ApplicationProxy.cfc in my root directory and
I am trying to "extend" the ApplicationProxy.cfc in a sub directory that houses a login page. When I try to access my site login
page, I receive a file not found error. Here is the basic file layout.
mysite\Site1 (root)
mysite/site1/Application.cfc
mysite/site1/ApplicationProxy.cfc
mysite/site1/members
mysite/site1/members/Application.cfc
When I view the members/Application.cfc I have the following code:
<cfcomponent name="Application" extends="site1.ApplicationProxy">
But any attempt to hit the page results in a "404 - File not found" error in IE and Firefox.
The problem is that CF cannot find the ApplicationProxy.cfc file on the production server. It works on my test (local) server
and I can't figure out why it won't work on production. Tried all suggestions from Ben Nadel and Stack Overflow. Still no
go! 
Here's the mapping for the directory in CF Administrator:
/mysite  D:\inetpub\wwwroot\mysite\site1

Answer 1

I just noticed this:
mysite\Site1 (root)
mysite/site1/Application.cfc
mysite/site1/ApplicationProxy.cfc
mysite/site1/members
mysite/site1/members/Application.cfc
<cfcomponent name="Application" extends="site1.ApplicationProxy">
Here's the mapping for the directory in CF Administrator:
/mysite  D:\inetpub\wwwroot\mysite\site1
Given the name of your mapping (/mysite), CFC path should be mysite.ApplicationProxy surely? 
That said, none of this will be causing your 404.
Adam